<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="标题" prop="title">
        <el-input v-model="queryParams.title" placeholder="请输入标题" clearable @keyup.enter="handleQuery" />
      </el-form-item>

      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd" v-hasPermi="['mobile:lesson:add']">新增</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete"
          v-hasPermi="['mobile:lesson:remove']">删除</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" height="800" :data="lessonList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="主键ID" align="center" prop="id" v-if="false" />
      <el-table-column label="标题" align="center" prop="title" />
      <el-table-column label="封面" align="center" prop="cover" >
        <template #default="scope">
          <img :src="scope.row.cover" min-width="70" height="70"/>
        </template>
      </el-table-column>
      <el-table-column label="视频时长" align="center" prop="lessonTime" />
      <el-table-column label="备注" align="center" prop="remark" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <el-button type="text" icon="Edit" @click="handleUpdate(scope.row)" v-hasPermi="['mobile:lesson:edit']">修改
          </el-button>
          <el-button type="text" icon="Delete" @click="handleDelete(scope.row)" v-hasPermi="['mobile:lesson:remove']">删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total>0" :total="total" v-model:page="queryParams.pageNum" v-model:limit="queryParams.pageSize"
      @pagination="getList" />

    <!-- 添加或修改课程视频对话框 -->
    <el-dialog :title="title" v-model="open" :width="dialogWidth" append-to-body>
      <el-form ref="lessonRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="标题" prop="title">
          <el-input v-model="form.title" placeholder="请输入标题" />
        </el-form-item>
        <el-form-item label="封面" prop="cover">
          <el-input type="hidden" v-model="form.cover" placeholder="请输入封面" />
          <ImageUpload v-model="form.cover" :data={type:6} :limit="1" apiUrl="/common/uploadImg" />
        </el-form-item>

        <el-form-item label="视频" prop="url">
          <el-input type="hidden" v-model="form.url" placeholder="请输入视频链接" />
          <FileUpload  v-model="form.url" :limit="1" />
        </el-form-item>
        <el-form-item label="视频时长" prop="lessonTime">
          <el-input v-model="form.lessonTime" placeholder="请输入视频时长" />
        </el-form-item>
        <el-form-item label="简单描述" prop="desc">
          <el-input v-model="form.desc" type="textarea" :autosize="{ minRows: 4, maxRows: 6 }" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="禁忌人群" prop="prohibition">
          <el-input v-model="form.prohibition" type="textarea" :autosize="{ minRows: 4, maxRows: 6 }" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="注意事项" prop="attention">
          <el-input v-model="form.attention" type="textarea" :autosize="{ minRows: 4, maxRows: 6 }" placeholder="请输入内容" />
        </el-form-item>
        <el-form-item label="备注" prop="remark">
          <el-input v-model="form.remark" type="textarea" placeholder="请输入内容" />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="Lesson">
import { listLesson, getLesson, delLesson, addLesson, updateLesson } from "@/api/mobile/lesson";
import FileUpload from "../../../components/FileUpload/index.vue";

const { proxy } = getCurrentInstance();

const lessonList = ref([]);
const open = ref(false);
const loading = ref(true);
const showSearch = ref(true);
const ids = ref([]);
const single = ref(true);
const multiple = ref(true);
const total = ref(0);
const title = ref("");
const dialogWidth = ref("0");

const data = reactive({
  form: {},
  queryParams: {
    pageNum: 1,
    pageSize: 10,
    title: null
  },
  rules: {
    title: [
      { required: true, message: "标题不能为空", trigger: "blur" }
    ],
    // cover1: [
    //   { required: true, message: "封面不能为空", trigger: "blur" }
    // ],
    url: [
      { required: true, message: "视频链接不能为空", trigger: "blur" }
    ]
  }
});

const { queryParams, form, rules } = toRefs(data);

/** 查询课程视频列表 */
function getList() {
  loading.value = true;
  listLesson(queryParams.value).then(response => {
    lessonList.value = response.rows;
    total.value = response.total;
    loading.value = false;
  });
}

// 取消按钮
function cancel() {
  open.value = false;
  reset();
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    title: null,
    cover: null,
    url: null,
    lessonTime: null,
    desc: null,
    prohibition: null,
    attention: null,
    createBy: null,
    createTime: null,
    updateBy: null,
    updateTime: null,
    remark: null
  };
  proxy.resetForm("lessonRef");
}

/** 搜索按钮操作 */
function handleQuery() {
  queryParams.value.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id);
  single.value = selection.length != 1;
  multiple.value = !selection.length;
}

/** 新增按钮操作 */
function handleAdd() {
  reset();
  open.value = true;
  title.value = "添加课程视频";
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset();
  const _id = row.id || ids.value
  getLesson(_id).then(response => {
    form.value = response.data;
    open.value = true;
    title.value = "修改课程视频";
  });
}

/** 提交按钮 */
function submitForm() {
  proxy.$refs["lessonRef"].validate(valid => {
    const cover = form.value.cover ? form.value.cover[0]?.url || null : null
    if (valid) {
      if (form.value.id != null) {
        updateLesson({
          ...form.value,
          cover
        }).then(response => {
          proxy.$modal.msgSuccess("修改成功");
          open.value = false;
          getList();
        });
      } else {
        addLesson({
          ...form.value,
          cover
        }).then(response => {
          proxy.$modal.msgSuccess("新增成功");
          open.value = false;
          getList();
        });
      }
    }
  });
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value;
  proxy.$modal.confirm('是否确认删除数据项？').then(function () {
    return delLesson(_ids);
  }).then(() => {
    getList();
    proxy.$modal.msgSuccess("删除成功");
  }).catch(() => { });
}

/** 导出按钮操作 */
function handleExport() {
  proxy.download('mobile/lesson/export', {
    ...queryParams.value
  }, `lesson_${new Date().getTime()}.xlsx`)
}

function setDialogWidth() {
  var val = document.body.clientWidth
  const def = 500 // 默认宽度
  if (val < def) {
    dialogWidth.value = '100%'
  } else {
    dialogWidth.value = def + 'px'
  }
}

onMounted(() => {
  window.onresize = () => {
    return (() => {
      setDialogWidth()
    })()
  }
})

getList();
setDialogWidth();
</script>
